diff --git a/Makefile b/Makefile
index edf4b14..150db6a 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-VERSION = 2.21
+VERSION = 2.22
 PACKAGE = yubikey-val
 CODE = COPYING Makefile NEWS ykval-checksum-clients			\
 	ykval-common.php ykval-config.php ykval-db.php ykval-db.sql	\